Apparatus for the distribution of pulverulent products



SeP- 27, 1949- c. NlcoLLE APPARATUS FOR THE DISTRIBUTION OF FULVERULENT PRODUCTS Filed Aug. 27, 1945 A r f.. l ..4

5-2.1.5.iw A CIJ Patented Sept. 27, 1949 f 'y I "APPARATUS FOR THE DISTRIBUTION OF PULVERULENT PRODUCTS Charles Nicolle, Gentilly, France l lApplication August 27, 1945, Serial No. 612,871 y Y In France December 21, 1944 Apparatuses are already known which allow the projection of a succession of jets of a pulverulent product under the effect of the pressure exerted on the sides of the apparatuses, while their removal is performed through tubes engaging said apparatuses.

In particular, apparatuses exist which allowl In the rst Vcase l obtainE a jet Vof powder and in the second ,case something like a cloudextending over a certain surface.

According to a chief characteristic feature of the invention, .my apparatus includes a tube dipping inside the receiver containing thepulverulent product whereas either the cover or the bottom of the. apparatus is provided with sprinkling ports which maybe vnlomentarily closed by suitable means. VThe apparatus thus constituted forms per se anovel industrial product.

Other advantageous auxiliary features will appear from the reading of the.V following descrip.- tion and examination of accompanying drawings in which I have shown diagrammatically by way of examples various forms of execution of my invention.

In said drawings:

Figs. 1 and 2 show vertical cross sections of.

an apparatus executed in accor'dance with my invention andillustrated respectively in its upright position and in its upside down position.

Fig. 3 is a plan view of one of theperforated covers used in said apparatus.

Fig. 4 shows a modication of the apparatus illustrated in Figs. 1-2 with the means for holding the closing plug.

Fig. 5 is a cross-sectional view 4of another form` two x'nodification's4 of the ap-L sion ofcompressions are exerted 'on the side of 10 Claims. (Cl. 222-192) Fig. 9 is a cross4section of a further form of execution of my invention provided with a rotary shutter. Z y

Fig. 10 is a plan view of the shutter usedin the apparatus illustrated in Fig. 9. 'V

Fig. 11 is a modification ofthe apparatus illustratedinFig. 9. L ff Fig. 12 shows a further Amodification of the apparatus of Fig. 9.

Figs. 13 and 14 are -plan views in two dilerent positions of a"modied form of the perforated shutter shown in Fig'. 10. y

Fig. 15 shows a modification wherein the perforated cover is arranged at the lower end of the apparatus.

As apparent 'from the drawing, in particular in Figs. 1, 2, 3, the apparatus includes a receiver l which may for instance have a circular crosssection which may beobtained very economically and very simply by rolling a sheet of plastic material such as acetate of cellulose or the like material. This forms a ytube to which is secured on one hand a solid bottom 2`which may at the same time,V if required, serve`as a lling stopper in which case it is removable and on the other hand a perforated cover or end 3 whichcarries the tube 4 dipping inside the receiver into the mass of pulverulent material 5 to be projected or dispensed.

On the perforated bottom 3 may be fitted a cover or shutter 6 which is engaged frictionally over the wall of the cylinder I.

The above described apparatus may serve both for the projecting of an upwardly directed jet of powder or for sprinkling under the form of a cloud having a large surface, according to ythe result which it isdesired 'to obtain.

For the projection under the form of jets, the apparatus is placed in the position illustrated in Fig. 1 with the shutter 6 inplace and a succesthe apparatus whereby, the openings in the perforated bottom being closed by the shutter 6, the inner. pressure increases and the powder is projectedupwardly through the upper end of the tube 4. Y l l When it is` desired to use the apparatus for sprinkling, it isonly necessary to turn it upside down into the position illustratedin Fig. 2, after which the closing stopper 6 or shutter is removed,

" and to shake or slightly stir the apparatus. vThe powder under the action of gravity and of the shocksimpressed to said apparatus escapes then through the opening provided inthe bottom cover 3 and deposes softly oncomparatively large surfaces such as Wounds in the case of a pharmaceutical powder, a part of the body in the case of talc, etc.

Consequently it appears that it is possible with an apparatus which is extremely simple and economical in manufacture to execute an apparatus which is adapted to play a double part which may be selected-V atl willi; projection of` the pulverulent product under' a certain' pressure on' to a suitable Well determined point or mere sprinklingv of the pulverulent product over a large surface' Without any pressure being appliedt From the preceding, it appears that a'4 pa Stien-- lar form of execution of the double acting ap paratus has been described, but other forms of execution of the invention be imagined and? a few of these will be described hereinbelow by Way of examples. Y

In the device illustrated in Fig. 4, which i's a modication of that previously described, the closing plug'Y 6i or shutter-y may be held by means of bayonet joi'nt obtained by providing forirr-f stance at the upper end of the cylinder fpro jecting parts` F adapted. to engage notches 8' provided in the side wall of theK closing plug 6;. which notches have'the shape of ari inverted L. and may even be replaced by mere holes. Thus, whena succession' of' pressures exerted on the si'de of the apparatus, there is no risk of' the plugY or shutter rising under the' actionof this pressure which wpuld lead' to a stopping of the operation' of the apparatus used forN projecting purposes.

Inthe form of execution illustrated in Fig. 5, the' closing' cover or shutter' 6 is constituted by a simple ilat disc. rigid with the` projecting` tube 4'. The latter is removable instead of being station ary as in the preceding oase and' may slide with slight friction insideY a suitable hole provided.. preferably at its center, in thek perforated. bottom; 3`.

For executing the sprinkling. itis simply suiii-v cient to. remove the: tube 4l with the closingrdisc 6v carried by it. and toturn the apparatus upside down.

For. executing the projection of the jet of pow-A der, the tube isset backa in.- place andy isl forced back until. the. disc 6 comesinto contact-with the perforated bottom 3 and the apparatus is thenset in its upright posit-ioni illustrated in Fig. 5.

It desired, it. is. possibleV to provide ast shownon the closing disc 6u a plurality of; smallbosses orprojections 9. the location of which corresponds to the location of the holes inthe perforated bottom 3. e A Y 'Ilhe bosses engage saidholesiwhen thev shutter 6 is caused to bear against the perforatedY cover. 3 so as to provide for a more uidtight closure of the: apparatus; when it ist used for projecting. a jet of powder through the tube 4.-

Thesmal-l bosses 9 may be obtainedn any suit-r able manner; they may be chased,- stamped, cast"r etc. r

In thev form: ofVV execution illustrated in Fig.` 6',y there4 is' usedalso a. closing disc 6. which is.v rigida with the projecting tube 4 and in this formi ofi execution, therev isi provided? a. system for intereng'agem'ent l including al bayonet joint fer the shutter 6 with reference to the perforated cover 3 to the same purpose asl that disclosed the' case of Fig.v

For the same purposeY also, another solution: may bei proposed which consists as' illustrated in Figi. Tf in@ providing the shutter with a centralv threaded projection f f which may be screwedZ in@ '4 side a tapped hole which corresponds thereto in the perforated cover 3.

In a modification illustrated in Fig. 8, the same arrangement is provided for ensuring the fluidtightness of the receiver l, but it is associated with projections 9 provided as in the case of Fig. 5 on the lower surface of the shutter 6 so as to correspond? with the openings' in ther perforated bottom 3.

In the form of execution or Fig. 9, the projection tube 4 is welded to the perforated cover 3 as inf the case illustrated in Figs. 1 and 2, but the; cTosiiig.' of the openings in said perforated cover. is obtained through a rotation of the closing' disc or' shutter 6 which is retained against the bottom cover; byra stationary ring I2.

Inthe form of execution illustrated in particular in Figs. 5 to 9, it is of advantage to give the dis'c shaped shutter a diameter which is preferably slightly greater than the diameter of the neck' of the receiver l so as to furtherthe operation of this closing shutter Whichshould never be' too loose, without ep'eiationI becoming however too-hard.

The; edges of the shutter may be indented or provided with flat sides to make operation easy.

In the pl'arivievv shown inFi'g 10; tlfieapparatus is closed` as the perioratidnsf` in the" closing disci do not register any more with openings inl the perforated'bottom 3e. corresponds to; the use of the apparatus in its upright position for theJ projection of the jet of powder through theI tubev 4; Whenl it is to*b'eusedi for sprinkling, it is sufcient to make'tlie disc@ rotate in order toA bring said openings' into' register and toturn-` the apparatus-upside down'. l

In Fig. 11, Irhave illustrated a modification of the device shown' in Fig. 9; ccordin'g to this Inodicatibir, they perforated shutter orA disc- 6" isl arranged on the inside and tlie tube 4f is carried:

by the perforatedI cover or bottom* soV that it mayv rotate? therein afridi carry along; with it, the closing disc' 6 which* is: rigidi therewith. The'tube' E with` the perforated clbsing c'lisrl Bifis' held and prevented from mpving longitudinally by a ring The' operation of' the apparatus is' similar to that disclosed with reference to Fig. 9"..

In Fig. 12, I haveillustfated. a further'modificati'on of thel apparatus according to Fig. 9, said modification` consisting in that the perforated shutter disc' 15" is again rocated onth'e outside, but in the case of Fig. 12 it is rigid' with the projecting tube 4. This arrangement is held by means for instanceof a fitting' f 3' provided on the neck of the receiver r. y

In these various formsV ofl execution it is` of aclvantag'e tov provide also. in. the Vperforated disc small bosses or projectionssimilar to the projections 9 illustrated inFigs., 5 and 8,` which projections engage in their cl'osing'positifo'n the holes ofthe perforatedbottom. y Y s In Figs. I3' arid I4, I` have shown a..p1'an view of perforated shutters. or discs 6" which. may be mounted. according toany of the'. above described systems, but" Whereiiiftiie arrangementv of. theA perforatibr'is difiere' and allowsari adjustment of the sprinkling output. Theperoratons of the' shutter-t" are arranged as in' the case of, the per. ioratibr'is` in' thewbnttom or cover 3 albn'g one or' more half circles so. that when the shutter. or disc 6 is caused to rotate, 'a more or less considerablenumberof ports is brought in front cir-co1- responding ports, which for itsresuit' an increase fas desired of the sprinkling output.

to, sprinkle through the. registering ports; in

other words, this position corresponds tothe maximum `output of'v sprinkling `material.

Between thesertwo positions, there exists a certain number of intermediary positions corresponding to intermedia-ry outputs between zero.`

:and thismaximum.

In Fig. 15, I Ihave shown another form ofI exe-v cution of my inventionwhich allows the same results t-o be obtained as those obtained in the preceding cases, but without it being necessary to turn the apparatus upside down. In this form of execution the projecting'tube 4 instead of being mounted in the perforated bottom 3 is carried on the opposite solid cover 2. The perforated bottom 3 may be closed in any suitable manner, for instance, by means of a closing plug y6 such as that used in the form of execution of Figs. 1 and 2.

Any other closing means and in particular any of the other precedingly disclosed forms of execution and their modifications maybe applied.

In the various preceding forms of execution, the perforated bottom 3 has been shown as provided with a certain number `of holes.

If desired, in certain cases one -hole only could be provided for sprinkling purposes. This hole is used at the same time for passing projection tube li therethrough and said tube may be held in Iplace either by frictional engagement with the wall of the hole, or by means of a threaded portion of the tube engaging a hollow thread provided in said hole.

This would lead in the same manner as previously described and laccording to my invention to an apparatus affording means for executing an upwardly [directed projection of pulverulent Iproduct von one hand land a gradual steady sprinkling on the other hand.

Of course, the arrangement and size of the perforations, yas well as the diameter of the projecting tube 4 are -chosen in accordance with the nature of the powder and the output to be -obtained.

In the above disclosure, I have described a receiver wherein the body of the receiver is formed by a cylinder obtained by rolling a sheet of plastic material. Obviously the body of the apparatus may receive any other suitable shape and may be obtained through any other means. For instance I may obtain this body of the apparatus by sticking or coupling through their edges two suitably recessed sheets of 'plaStc material.

Lastly it is possible to modify, without widening the scope of my invention, certain details in the execution -of the apparatuses described :and illustrated, which have been shown merely by way of examples. These apparatuses allow on one hand a projection under pressure 4of a succession of jets of pulverulent products under the action of pressure exerted on the walls of the apparatus and on the other hand a sprinkling of these same products through a free downward fall which distributes them as desired.

What I claim is:

1. An apparatus for the distribution of pulverulent products constituted by a receiver comprising slightly elastic walls, a perforated cover atcne 'end o'f said receiver, .a projection tubedippinginside said receiver up to a predetermined distance from vthe bottom of said receiver and,`

passing through the perforated cover and a closure rigidly secured to theV projection tube and Vforming therewith a unit. adapted to move axially with reference to the walls and perforated cover. f

2. An apparatus for the Ydistribution of pulverulent products ,constituted by a receiver comprising slightlyyelastic walls, a. perforated cover at one endvof said receiver, a projection tube dipping inside. said receiver up to a predetermined distance ,fromthe bottom of said receiver .and passing through the perforated cover and a perforated disc adapted to rotatel .coaXially with reference Sto and in contact with the perforated cover, round the projection tube, so as to allow itsqperforations to be .brought into and out, of register with those of said perforated cover.

r`,3. An apparatus for. the. distribution of pulverulent products, constitutedby a receiver comprising .slightly elastic walls, a perforated cover at one end of said receiver, a projection tube dipping inside saidreceiver up to apredetermined distance from the bottom of said receiver and passing through the perforated cover and a perforated disc rigidly secured to the projection tube and forming therewith a unit adapted to rotate round a longitudinal axis of the receiver so as to allow the perforations in the perforated disc and cover to be brought into and out of register.

4. A11 apparatus for the distribution of pulverulent products constituted by a receiver comprising slightly elastic walls, a perforated cover at one end of said receiver, a projection tube dipping inside said receiver up to a predetermined distance from the bottom of said receiver and passing through the perforated cover and a perforated disc adapted to rotate coaxially with reference to and in contact with the perforated cover, on the inside of the receiver, so as to allow its perforations to be brought into and out of register with those of said perforated cover.

5. An apparatus for the distribution of pulverulent products constituted by a receiver comprising slightly elastic walls, a perforated cover at one end of said receiver, a projection tube dipping inside said receiver up to a predetermined distance from the bottom of said receiver and passing through the perforated cover and a perforated disc adapted to rotate coaXially with reference to and in contact with the perforated cover on the outside of the receiver, so as to allow its perforations to be brought into and out of register with those of said perforated cover.

6. An apparatus for the distribution of pulverulent products constituted by a receiver comprising slightly elastic walls, a perforated cover at one end of said receiver, a projection tube dipping inside said receiver up to a predetermined distance from the bottom of said receiver and passing through the perforated cover, a plug adapted to removably cap the perforated cover, and bayonet bolting means for securing the plug to the receiver.

7. An apparatus for the distribution of pulverulent products constituted by a receiver comprising slightly elastic walls, a perforated cover at one end of said receiver, a projection tube dipping inside said receiver up to a predetermined distance from the bottom of said receiver and passing through the perforated cover, a rotary mil@ clcsi'ne dise rigid. with the prorctnm andi. foaming therewtlt a.; adapted: t@ reference tothe. permeated@ cover halting' means on; sad disc im: securing sam tm thel penf'orated coveis.

Am apparatus for the dismibntiona of put* verul'ent products.y constituted; by a. neceirerf com prising slightly elastic walls, a perforated man at. onel emi` o said; receiver; a; pmecom tube dipping inside. sai'd receiver upttoai pnedetemine dista-nee# f-nom' thef hottem o5 neeeimen' andi passing through the perforated over mdf a, closure'. rigid with. thepmentizmi and: miA cluding; an: element adapte. to be scx'eweel inside the perforated covem S. An` apparatus for the distribntibn. et' 1miLV verul'entl products constituted by at receiver zum`A prisin'g* slightiy elastic. a. perforaie come? at, onei endh ci? saidi receiver, a pifojctem dipping inside sai@` receiver` upwmaaprecfetenmned'l distance from they leottemA of said? receiver and passingk thrcugh the' perfcrateciy come;V andi as: perforated? disc*v adapted to rotate cuaxi'aslly with re'feielirce tu` and in.` contact with the perforatec cover, thenumber eFpenforatonsregSterihgwi-th 253 2,1161714 one aannther on' andion the, enverrvaryihg with@ the angular' pesiom of tha 16.2. Aam apparatus; iol:- the distribution ot pnl'- venulem: pruducts. constituted. by: a reaewenA com-- pricing.A slightly: elastic Waller az, perforated. oever; ai: one end?. oi saint renseigner,r a. projection tube dipping-nsclie,e saireceiver up. tnx-a predetermined czstannrzel from: the bottom of? said receiver andi passing through the. perforated cover and a perforated'. disc adapted to: rota-te ceaxially with-- referenee: to: and` in;` contact W-ithi-thel perforated cover; the perforati'ons on the disc andi on the cover being' arranged? along arcs@ cf a. circle o equal radii and at equal distances from ane-1y an- CHARLES-Nicam;

2@ sie of. this parent:

Name' Date Mins 22,A 1934: Rose MayV 1011938' 

